Palazzo Labia is a baroque palace in Venice, Italy. Built in the 17th–18th century, it is one of the last great palazzi of Venice. Little known outside of Italy, it is most notable for the remarkable frescoed ballroom painted 1746–47 by Giovanni Battista Tiepolo, with decorative works in trompe l’oeil by Gerolamo Mengozzi-Colonna.